Container base



FIG. 1 is a bottom, front perspective view of a container base of thesubject invention;

FIG. 2 is a top, front perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a right elevation view thereof;

FIG. 6 is a left elevation view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a top plan view thereof;

FIG. 9 is a bottom front perspective view of a second embodiment of thecontainer base;

FIG. 10 is a bottom plan view thereof;

FIG. 11 is a bottom front perspective view of a third embodiment of thecontainer base; and,

FIG. 12 is a bottom plan view thereof.

CLAIM The ornamental design for the container base, as shown anddescribed.